// Copyright 2011-2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.security.zynamics.zylib.gui.zygraph.helpers;

import com.google.security.zynamics.zylib.gui.zygraph.nodes.IViewNode;
import com.google.security.zynamics.zylib.types.common.CollectionHelpers;
import com.google.security.zynamics.zylib.types.common.ICollectionFilter;
import com.google.security.zynamics.zylib.yfileswrap.gui.zygraph.grouping.GroupHelpers;
import com.google.security.zynamics.zylib.yfileswrap.gui.zygraph.nodes.ZyGraphNode;
import java.util.Collection;

public class SelectedVisibleFilter<NodeType extends ZyGraphNode<? extends IViewNode<?>>>
    implements ICollectionFilter<NodeType> {
  public static <NodeType extends ZyGraphNode<? extends IViewNode<?>>> Collection<NodeType> filter(
      final Collection<NodeType> collection) {
    return CollectionHelpers.filter(collection, new SelectedVisibleFilter<NodeType>());
  }

  @Override
  public boolean qualifies(final NodeType node) {
    final IViewNode<?> rawNode = (IViewNode<?>) node.getRawNode();

    return (rawNode.getParentGroup() == null) || GroupHelpers.isExpanded(rawNode.getParentGroup());
  }
}
